Mobile Number Portability (MNP) means you can keep your mobile telephone number if you decide to change from one mobile service provider to another. Basically, it is a service that allows you to keep your mobile telephone number irrespective of your service provider.
You will be able to port mobile/ cellular number to another mobile service provider within each ECTEL island.
You will not be able to port your fixed or landline telephone phone number at this time. Fixed number portability will be launched at a later date once alternative fixed services are available in each ECTEL island.
You can only port telephone numbers within the same ECTEL country and you cannot port numbers between different countries.
So, if you port (or switch) between service providers, you do not have to go to the trouble of informing all your friends, family and colleagues that your telephone number has changed – it stays the same.